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Dielectric waveguide filter with direct coupling and alternative cross-coupling

a technology of cross-coupling and dielectric waveguides, which is applied in waveguide devices, basic electric elements, resonators, etc., can solve the problems of increasing the length of the filter, not being desirable or possible,

Active Publication Date: 2018-08-14
CTS CORP ELKHART
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

A disadvantage associated with the incorporation of additional resonators, however, is that it also increases the length of the filter which, in some applications, may not be desirable or possible due to, for example, space limitations on a customer's motherboard.

Method used

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  • Dielectric waveguide filter with direct coupling and alternative cross-coupling
  • Dielectric waveguide filter with direct coupling and alternative cross-coupling
  • Dielectric waveguide filter with direct coupling and alternative cross-coupling

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Embodiment Construction

[0025]FIGS. 1, 2, and 3 depict a ceramic dielectric waveguide filter 100 in accordance with the present invention which incorporates both direct coupling and alternative cross-coupling features.

[0026]In the embodiment shown, the waveguide filter 100 is made from four separate generally parallelepiped-shaped blocks or blocks 101, 103, 201, and 203 of solid dielectric material which have been coupled and secured together in a combination side-by-side and stacked relationship to form the waveguide filter 100 as described in more detail below. Specifically, the bottom blocks 101 and 103 are coupled together in a side-by-side relationship and the top blocks 201 and 203 are coupled together in a side-by-side relationship with the top blocks 201 and 203 stacked on and over the bottom blocks 101 and 103 with the top block 201 stacked on and over the bottom block 101 and the top block 203 stacked on and over the bottom block 103.

[0027]Each of the bottom blocks 101 and 103 is comprised of a s...

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Abstract

A waveguide filter for the transmission of an RF signal comprising a plurality of blocks of dielectric material coupled together in a combined side-by-side and stacked relationship. Each of the blocks defines resonators and includes an exterior surface that is covered with a layer of conductive material and defines internal layers of conductive material with the blocks coupled together. The internal layers of conductive material include regions devoid of conductive material that define internal windows for the transmission of the RF signal between resonators in the side-by-side and stacked blocks. The internal layers of conductive material also include regions devoid of conductive material that define isolated pads of conductive material for the indirect transmission of the RF signal between resonators in the stacked blocks.

Description

CROSS-REFERENCE TO RELATED AND CO-PENDING APPLICATIONS[0001]This application is a continuation-in-part application that claims the benefit of the filing date and disclosure of U.S. patent application Ser. No. 14 / 708,870 filed on May 11, 2015 which claims the benefit of the filing date and disclosure of U.S. patent application Ser. No. 13 / 373,862 filed on Dec. 3, 2011, now U.S. Pat. No. 9,030,279 issued on May 12, 2015, the contents of which are incorporated herein by reference as are all references cited therein.[0002]This application is also a continuation-in-part application that claims the benefit of the filing date and disclosure of U.S. patent application Ser. No. 14 / 842,920 filed on Sep. 2, 2015 which claims the benefit of the filing date and disclosure of U.S. patent application Ser. No. 14 / 088,471 filed on Nov. 25, 2013, now U.S. Pat. No. 9,130,255 issued on Sep. 8, 2015, the contents of which are incorporated herein by reference as are all references cited therein.[0003]Thi...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): H01P1/20H01P1/10H01P1/207H01P1/208H01P7/10
CPCH01P1/2002H01P1/10H01P1/2088H01P1/208H01P1/207H01P7/10
Inventor ROGOZINE, ALEXANDREVANGALA, REDDY
Owner CTS CORP ELKHART
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